Home / 132,038.72-182,202-77,585.12

Finding the Fourth Proportional to 132,038.72, 182,202 and 77,585.12

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Solution

The fourth proportional to 132,038.72, 182,202 and 77,585.12 is: 107,060.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,038.72 : 182,202 = 77,585.12 : x
  2. Step 2: Convert to fraction form
    132,038.72/182,202 = 77,585.12/x
  3. Step 3: Cross multiply
    132,038.72x = 182,202 × 77,585.12
  4. Step 4: Simplify right side
    132,038.72x = 14,136,164,034.24
  5. Step 5: Solve for x
    x = 14,136,164,034.24/132,038.72
  6. Step 6: Final answer
    x = 107,060.75

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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.