Home / 104,987.09-157,545.97-42,657.59

Finding the Fourth Proportional to 104,987.09, 157,545.97 and 42,657.59

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Solution

The fourth proportional to 104,987.09, 157,545.97 and 42,657.59 is: 64,012.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,987.09 : 157,545.97 = 42,657.59 : x
  2. Step 2: Convert to fraction form
    104,987.09/157,545.97 = 42,657.59/x
  3. Step 3: Cross multiply
    104,987.09x = 157,545.97 × 42,657.59
  4. Step 4: Simplify right side
    104,987.09x = 6,720,531,681.63
  5. Step 5: Solve for x
    x = 6,720,531,681.63/104,987.09
  6. Step 6: Final answer
    x = 64,012.93

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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.