Home / 121,842,488.35-168,144,915.10-74,775,970.24

Finding the Fourth Proportional to 121,842,488.35, 168,144,915.10 and 74,775,970.24

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Solution

The fourth proportional to 121,842,488.35, 168,144,915.10 and 74,775,970.24 is: 103,192,238.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,842,488.35 : 168,144,915.10 = 74,775,970.24 : x
  2. Step 2: Convert to fraction form
    121,842,488.35/168,144,915.10 = 74,775,970.24/x
  3. Step 3: Cross multiply
    121,842,488.35x = 168,144,915.10 × 74,775,970.24
  4. Step 4: Simplify right side
    121,842,488.35x = 12,573,199,166,684,202
  5. Step 5: Solve for x
    x = 12,573,199,166,684,202/121,842,488.35
  6. Step 6: Final answer
    x = 103,192,238.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.