Home / 128,951.13-193,417.50-34,179.18

Finding the Fourth Proportional to 128,951.13, 193,417.50 and 34,179.18

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Solution

The fourth proportional to 128,951.13, 193,417.50 and 34,179.18 is: 51,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,951.13 : 193,417.50 = 34,179.18 : x
  2. Step 2: Convert to fraction form
    128,951.13/193,417.50 = 34,179.18/x
  3. Step 3: Cross multiply
    128,951.13x = 193,417.50 × 34,179.18
  4. Step 4: Simplify right side
    128,951.13x = 6,610,851,547.65
  5. Step 5: Solve for x
    x = 6,610,851,547.65/128,951.13
  6. Step 6: Final answer
    x = 51,266.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.