Home / 145,402.15-200,807.95-129,552.18

Finding the Fourth Proportional to 145,402.15, 200,807.95 and 129,552.18

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Solution

The fourth proportional to 145,402.15, 200,807.95 and 129,552.18 is: 178,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,402.15 : 200,807.95 = 129,552.18 : x
  2. Step 2: Convert to fraction form
    145,402.15/200,807.95 = 129,552.18/x
  3. Step 3: Cross multiply
    145,402.15x = 200,807.95 × 129,552.18
  4. Step 4: Simplify right side
    145,402.15x = 26,015,106,032.03
  5. Step 5: Solve for x
    x = 26,015,106,032.03/145,402.15
  6. Step 6: Final answer
    x = 178,918.30

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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.