Home / 103,351.14-142,640.16-63,088.32

Finding the Fourth Proportional to 103,351.14, 142,640.16 and 63,088.32

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Solution

The fourth proportional to 103,351.14, 142,640.16 and 63,088.32 is: 87,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,351.14 : 142,640.16 = 63,088.32 : x
  2. Step 2: Convert to fraction form
    103,351.14/142,640.16 = 63,088.32/x
  3. Step 3: Cross multiply
    103,351.14x = 142,640.16 × 63,088.32
  4. Step 4: Simplify right side
    103,351.14x = 8,998,928,058.93
  5. Step 5: Solve for x
    x = 8,998,928,058.93/103,351.14
  6. Step 6: Final answer
    x = 87,071.40

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1.5x scale

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.