Home / 112,335.28-155,023.35-61,347.40

Finding the Fourth Proportional to 112,335.28, 155,023.35 and 61,347.40

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Solution

The fourth proportional to 112,335.28, 155,023.35 and 61,347.40 is: 84,659.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,335.28 : 155,023.35 = 61,347.40 : x
  2. Step 2: Convert to fraction form
    112,335.28/155,023.35 = 61,347.40/x
  3. Step 3: Cross multiply
    112,335.28x = 155,023.35 × 61,347.40
  4. Step 4: Simplify right side
    112,335.28x = 9,510,279,461.79
  5. Step 5: Solve for x
    x = 9,510,279,461.79/112,335.28
  6. Step 6: Final answer
    x = 84,659.77

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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.