Home / 157,068.80-235,524.32-72,756.48

Finding the Fourth Proportional to 157,068.80, 235,524.32 and 72,756.48

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Solution

The fourth proportional to 157,068.80, 235,524.32 and 72,756.48 is: 109,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,068.80 : 235,524.32 = 72,756.48 : x
  2. Step 2: Convert to fraction form
    157,068.80/235,524.32 = 72,756.48/x
  3. Step 3: Cross multiply
    157,068.80x = 235,524.32 × 72,756.48
  4. Step 4: Simplify right side
    157,068.80x = 17,135,920,477.59
  5. Step 5: Solve for x
    x = 17,135,920,477.59/157,068.80
  6. Step 6: Final answer
    x = 109,098.18

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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.