Home / 111,132.18-153,360.84-63,386.34

Finding the Fourth Proportional to 111,132.18, 153,360.84 and 63,386.34

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Solution

The fourth proportional to 111,132.18, 153,360.84 and 63,386.34 is: 87,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,132.18 : 153,360.84 = 63,386.34 : x
  2. Step 2: Convert to fraction form
    111,132.18/153,360.84 = 63,386.34/x
  3. Step 3: Cross multiply
    111,132.18x = 153,360.84 × 63,386.34
  4. Step 4: Simplify right side
    111,132.18x = 9,720,982,346.93
  5. Step 5: Solve for x
    x = 9,720,982,346.93/111,132.18
  6. Step 6: Final answer
    x = 87,472.25

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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.