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Finding the Fourth Proportional to 103,803.57, 143,248.92 and 56,056.91

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Solution

The fourth proportional to 103,803.57, 143,248.92 and 56,056.91 is: 77,358.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,803.57 : 143,248.92 = 56,056.91 : x
  2. Step 2: Convert to fraction form
    103,803.57/143,248.92 = 56,056.91/x
  3. Step 3: Cross multiply
    103,803.57x = 143,248.92 × 56,056.91
  4. Step 4: Simplify right side
    103,803.57x = 8,030,092,010.67
  5. Step 5: Solve for x
    x = 8,030,092,010.67/103,803.57
  6. Step 6: Final answer
    x = 77,358.54

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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.