Home / 109,712.28-151,402.95-59,411.28

Finding the Fourth Proportional to 109,712.28, 151,402.95 and 59,411.28

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Solution

The fourth proportional to 109,712.28, 151,402.95 and 59,411.28 is: 81,987.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,712.28 : 151,402.95 = 59,411.28 : x
  2. Step 2: Convert to fraction form
    109,712.28/151,402.95 = 59,411.28/x
  3. Step 3: Cross multiply
    109,712.28x = 151,402.95 × 59,411.28
  4. Step 4: Simplify right side
    109,712.28x = 8,995,043,055.28
  5. Step 5: Solve for x
    x = 8,995,043,055.28/109,712.28
  6. Step 6: Final answer
    x = 81,987.57

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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.