Home / 111,130.93-153,359.13-63,385.06

Finding the Fourth Proportional to 111,130.93, 153,359.13 and 63,385.06

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Solution

The fourth proportional to 111,130.93, 153,359.13 and 63,385.06 is: 87,470.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,130.93 : 153,359.13 = 63,385.06 : x
  2. Step 2: Convert to fraction form
    111,130.93/153,359.13 = 63,385.06/x
  3. Step 3: Cross multiply
    111,130.93x = 153,359.13 × 63,385.06
  4. Step 4: Simplify right side
    111,130.93x = 9,720,677,656.60
  5. Step 5: Solve for x
    x = 9,720,677,656.60/111,130.93
  6. Step 6: Final answer
    x = 87,470.50

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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.