Home / 102,309.83-141,276.89-64,135.18

Finding the Fourth Proportional to 102,309.83, 141,276.89 and 64,135.18

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Solution

The fourth proportional to 102,309.83, 141,276.89 and 64,135.18 is: 88,562.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,309.83 : 141,276.89 = 64,135.18 : x
  2. Step 2: Convert to fraction form
    102,309.83/141,276.89 = 64,135.18/x
  3. Step 3: Cross multiply
    102,309.83x = 141,276.89 × 64,135.18
  4. Step 4: Simplify right side
    102,309.83x = 9,060,818,312.24
  5. Step 5: Solve for x
    x = 9,060,818,312.24/102,309.83
  6. Step 6: Final answer
    x = 88,562.54

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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.