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Finding the Fourth Proportional to 102,230.94, 141,068.80 and 75,387.90

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Solution

The fourth proportional to 102,230.94, 141,068.80 and 75,387.90 is: 104,028.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,230.94 : 141,068.80 = 75,387.90 : x
  2. Step 2: Convert to fraction form
    102,230.94/141,068.80 = 75,387.90/x
  3. Step 3: Cross multiply
    102,230.94x = 141,068.80 × 75,387.90
  4. Step 4: Simplify right side
    102,230.94x = 10,634,879,693.71
  5. Step 5: Solve for x
    x = 10,634,879,693.71/102,230.94
  6. Step 6: Final answer
    x = 104,028.00

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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.