Home / 103,023.29-142,032.54-88,076.51

Finding the Fourth Proportional to 103,023.29, 142,032.54 and 88,076.51

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Solution

The fourth proportional to 103,023.29, 142,032.54 and 88,076.51 is: 121,426.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,023.29 : 142,032.54 = 88,076.51 : x
  2. Step 2: Convert to fraction form
    103,023.29/142,032.54 = 88,076.51/x
  3. Step 3: Cross multiply
    103,023.29x = 142,032.54 × 88,076.51
  4. Step 4: Simplify right side
    103,023.29x = 12,509,729,719.47
  5. Step 5: Solve for x
    x = 12,509,729,719.47/103,023.29
  6. Step 6: Final answer
    x = 121,426.24

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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.