Home / 134,312.31-185,330.43-77,712.75

Finding the Fourth Proportional to 134,312.31, 185,330.43 and 77,712.75

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Solution

The fourth proportional to 134,312.31, 185,330.43 and 77,712.75 is: 107,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,312.31 : 185,330.43 = 77,712.75 : x
  2. Step 2: Convert to fraction form
    134,312.31/185,330.43 = 77,712.75/x
  3. Step 3: Cross multiply
    134,312.31x = 185,330.43 × 77,712.75
  4. Step 4: Simplify right side
    134,312.31x = 14,402,537,373.98
  5. Step 5: Solve for x
    x = 14,402,537,373.98/134,312.31
  6. Step 6: Final answer
    x = 107,231.70

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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.