Home / 157,710.82-236,565-39,381.36

Finding the Fourth Proportional to 157,710.82, 236,565 and 39,381.36

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Solution

The fourth proportional to 157,710.82, 236,565 and 39,381.36 is: 59,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,710.82 : 236,565 = 39,381.36 : x
  2. Step 2: Convert to fraction form
    157,710.82/236,565 = 39,381.36/x
  3. Step 3: Cross multiply
    157,710.82x = 236,565 × 39,381.36
  4. Step 4: Simplify right side
    157,710.82x = 9,316,251,428.40
  5. Step 5: Solve for x
    x = 9,316,251,428.40/157,710.82
  6. Step 6: Final answer
    x = 59,071.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.