Home / 112,948.80-155,936.88-70,564.74

Finding the Fourth Proportional to 112,948.80, 155,936.88 and 70,564.74

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Solution

The fourth proportional to 112,948.80, 155,936.88 and 70,564.74 is: 97,421.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,948.80 : 155,936.88 = 70,564.74 : x
  2. Step 2: Convert to fraction form
    112,948.80/155,936.88 = 70,564.74/x
  3. Step 3: Cross multiply
    112,948.80x = 155,936.88 × 70,564.74
  4. Step 4: Simplify right side
    112,948.80x = 11,003,645,393.61
  5. Step 5: Solve for x
    x = 11,003,645,393.61/112,948.80
  6. Step 6: Final answer
    x = 97,421.53

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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.