Home / 105,130.56-145,082.40-59,807.04

Finding the Fourth Proportional to 105,130.56, 145,082.40 and 59,807.04

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Solution

The fourth proportional to 105,130.56, 145,082.40 and 59,807.04 is: 82,534.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,130.56 : 145,082.40 = 59,807.04 : x
  2. Step 2: Convert to fraction form
    105,130.56/145,082.40 = 59,807.04/x
  3. Step 3: Cross multiply
    105,130.56x = 145,082.40 × 59,807.04
  4. Step 4: Simplify right side
    105,130.56x = 8,676,948,900.10
  5. Step 5: Solve for x
    x = 8,676,948,900.10/105,130.56
  6. Step 6: Final answer
    x = 82,534.98

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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.