Home / 130,904.17-196,356.25-86,521.74

Finding the Fourth Proportional to 130,904.17, 196,356.25 and 86,521.74

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Solution

The fourth proportional to 130,904.17, 196,356.25 and 86,521.74 is: 129,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,904.17 : 196,356.25 = 86,521.74 : x
  2. Step 2: Convert to fraction form
    130,904.17/196,356.25 = 86,521.74/x
  3. Step 3: Cross multiply
    130,904.17x = 196,356.25 × 86,521.74
  4. Step 4: Simplify right side
    130,904.17x = 16,989,083,781.69
  5. Step 5: Solve for x
    x = 16,989,083,781.69/130,904.17
  6. Step 6: Final answer
    x = 129,782.60

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1.5x scale

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.