Home / 151,023.07-208,365.68-99,325.43

Finding the Fourth Proportional to 151,023.07, 208,365.68 and 99,325.43

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Solution

The fourth proportional to 151,023.07, 208,365.68 and 99,325.43 is: 137,038.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,023.07 : 208,365.68 = 99,325.43 : x
  2. Step 2: Convert to fraction form
    151,023.07/208,365.68 = 99,325.43/x
  3. Step 3: Cross multiply
    151,023.07x = 208,365.68 × 99,325.43
  4. Step 4: Simplify right side
    151,023.07x = 20,696,010,763.24
  5. Step 5: Solve for x
    x = 20,696,010,763.24/151,023.07
  6. Step 6: Final answer
    x = 137,038.74

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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.