Home / 103,411.12-142,703.52-63,192.16

Finding the Fourth Proportional to 103,411.12, 142,703.52 and 63,192.16

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Solution

The fourth proportional to 103,411.12, 142,703.52 and 63,192.16 is: 87,202.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,411.12 : 142,703.52 = 63,192.16 : x
  2. Step 2: Convert to fraction form
    103,411.12/142,703.52 = 63,192.16/x
  3. Step 3: Cross multiply
    103,411.12x = 142,703.52 × 63,192.16
  4. Step 4: Simplify right side
    103,411.12x = 9,017,743,668.40
  5. Step 5: Solve for x
    x = 9,017,743,668.40/103,411.12
  6. Step 6: Final answer
    x = 87,202.84

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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.