Home / 109,451.86-151,041.56-61,705.26

Finding the Fourth Proportional to 109,451.86, 151,041.56 and 61,705.26

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Solution

The fourth proportional to 109,451.86, 151,041.56 and 61,705.26 is: 85,152.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,451.86 : 151,041.56 = 61,705.26 : x
  2. Step 2: Convert to fraction form
    109,451.86/151,041.56 = 61,705.26/x
  3. Step 3: Cross multiply
    109,451.86x = 151,041.56 × 61,705.26
  4. Step 4: Simplify right side
    109,451.86x = 9,320,058,730.61
  5. Step 5: Solve for x
    x = 9,320,058,730.61/109,451.86
  6. Step 6: Final answer
    x = 85,152.13

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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.