Home / 140,079.38-193,309.30-76,417.18

Finding the Fourth Proportional to 140,079.38, 193,309.30 and 76,417.18

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Solution

The fourth proportional to 140,079.38, 193,309.30 and 76,417.18 is: 105,455.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,079.38 : 193,309.30 = 76,417.18 : x
  2. Step 2: Convert to fraction form
    140,079.38/193,309.30 = 76,417.18/x
  3. Step 3: Cross multiply
    140,079.38x = 193,309.30 × 76,417.18
  4. Step 4: Simplify right side
    140,079.38x = 14,772,151,573.77
  5. Step 5: Solve for x
    x = 14,772,151,573.77/140,079.38
  6. Step 6: Final answer
    x = 105,455.58

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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.