Home / 111,426.18-153,778.62-63,670.24

Finding the Fourth Proportional to 111,426.18, 153,778.62 and 63,670.24

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Solution

The fourth proportional to 111,426.18, 153,778.62 and 63,670.24 is: 87,870.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,426.18 : 153,778.62 = 63,670.24 : x
  2. Step 2: Convert to fraction form
    111,426.18/153,778.62 = 63,670.24/x
  3. Step 3: Cross multiply
    111,426.18x = 153,778.62 × 63,670.24
  4. Step 4: Simplify right side
    111,426.18x = 9,791,121,642.27
  5. Step 5: Solve for x
    x = 9,791,121,642.27/111,426.18
  6. Step 6: Final answer
    x = 87,870.93

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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.