Home / 111,101.16-153,319-60,113.80

Finding the Fourth Proportional to 111,101.16, 153,319 and 60,113.80

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Solution

The fourth proportional to 111,101.16, 153,319 and 60,113.80 is: 82,956.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,101.16 : 153,319 = 60,113.80 : x
  2. Step 2: Convert to fraction form
    111,101.16/153,319 = 60,113.80/x
  3. Step 3: Cross multiply
    111,101.16x = 153,319 × 60,113.80
  4. Step 4: Simplify right side
    111,101.16x = 9,216,587,702.20
  5. Step 5: Solve for x
    x = 9,216,587,702.20/111,101.16
  6. Step 6: Final answer
    x = 82,956.72

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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.