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Finding the Fourth Proportional to 111,448.47, 153,802.08 and 63,708.15

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Solution

The fourth proportional to 111,448.47, 153,802.08 and 63,708.15 is: 87,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,448.47 : 153,802.08 = 63,708.15 : x
  2. Step 2: Convert to fraction form
    111,448.47/153,802.08 = 63,708.15/x
  3. Step 3: Cross multiply
    111,448.47x = 153,802.08 × 63,708.15
  4. Step 4: Simplify right side
    111,448.47x = 9,798,445,982.95
  5. Step 5: Solve for x
    x = 9,798,445,982.95/111,448.47
  6. Step 6: Final answer
    x = 87,919.07

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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.