Home / 112,946.90-155,867.92-61,959.72

Finding the Fourth Proportional to 112,946.90, 155,867.92 and 61,959.72

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Solution

The fourth proportional to 112,946.90, 155,867.92 and 61,959.72 is: 85,505.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,946.90 : 155,867.92 = 61,959.72 : x
  2. Step 2: Convert to fraction form
    112,946.90/155,867.92 = 61,959.72/x
  3. Step 3: Cross multiply
    112,946.90x = 155,867.92 × 61,959.72
  4. Step 4: Simplify right side
    112,946.90x = 9,657,533,109.79
  5. Step 5: Solve for x
    x = 9,657,533,109.79/112,946.90
  6. Step 6: Final answer
    x = 85,505.08

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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.