Home / 109,447.05-151,036.92-61,700.40

Finding the Fourth Proportional to 109,447.05, 151,036.92 and 61,700.40

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Solution

The fourth proportional to 109,447.05, 151,036.92 and 61,700.40 is: 85,146.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,447.05 : 151,036.92 = 61,700.40 : x
  2. Step 2: Convert to fraction form
    109,447.05/151,036.92 = 61,700.40/x
  3. Step 3: Cross multiply
    109,447.05x = 151,036.92 × 61,700.40
  4. Step 4: Simplify right side
    109,447.05x = 9,319,038,378.77
  5. Step 5: Solve for x
    x = 9,319,038,378.77/109,447.05
  6. Step 6: Final answer
    x = 85,146.55

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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.