Home / 147,340.30-203,354.07-86,925.78

Finding the Fourth Proportional to 147,340.30, 203,354.07 and 86,925.78

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Solution

The fourth proportional to 147,340.30, 203,354.07 and 86,925.78 is: 119,972.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,340.30 : 203,354.07 = 86,925.78 : x
  2. Step 2: Convert to fraction form
    147,340.30/203,354.07 = 86,925.78/x
  3. Step 3: Cross multiply
    147,340.30x = 203,354.07 × 86,925.78
  4. Step 4: Simplify right side
    147,340.30x = 17,676,711,150.92
  5. Step 5: Solve for x
    x = 17,676,711,150.92/147,340.30
  6. Step 6: Final answer
    x = 119,972.00

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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.