Home / 109,688.18-151,370.16-59,387.18

Finding the Fourth Proportional to 109,688.18, 151,370.16 and 59,387.18

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Solution

The fourth proportional to 109,688.18, 151,370.16 and 59,387.18 is: 81,954.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,688.18 : 151,370.16 = 59,387.18 : x
  2. Step 2: Convert to fraction form
    109,688.18/151,370.16 = 59,387.18/x
  3. Step 3: Cross multiply
    109,688.18x = 151,370.16 × 59,387.18
  4. Step 4: Simplify right side
    109,688.18x = 8,989,446,938.55
  5. Step 5: Solve for x
    x = 8,989,446,938.55/109,688.18
  6. Step 6: Final answer
    x = 81,954.56

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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.