Home / 187,612.16-258,929.80-111,125.22

Finding the Fourth Proportional to 187,612.16, 258,929.80 and 111,125.22

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Solution

The fourth proportional to 187,612.16, 258,929.80 and 111,125.22 is: 153,367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,612.16 : 258,929.80 = 111,125.22 : x
  2. Step 2: Convert to fraction form
    187,612.16/258,929.80 = 111,125.22/x
  3. Step 3: Cross multiply
    187,612.16x = 258,929.80 × 111,125.22
  4. Step 4: Simplify right side
    187,612.16x = 28,773,630,989.56
  5. Step 5: Solve for x
    x = 28,773,630,989.56/187,612.16
  6. Step 6: Final answer
    x = 153,367.62

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1.5x scale

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.