Home / 140,117.90-193,365.51-76,458.38

Finding the Fourth Proportional to 140,117.90, 193,365.51 and 76,458.38

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Solution

The fourth proportional to 140,117.90, 193,365.51 and 76,458.38 is: 105,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,117.90 : 193,365.51 = 76,458.38 : x
  2. Step 2: Convert to fraction form
    140,117.90/193,365.51 = 76,458.38/x
  3. Step 3: Cross multiply
    140,117.90x = 193,365.51 × 76,458.38
  4. Step 4: Simplify right side
    140,117.90x = 14,784,413,642.47
  5. Step 5: Solve for x
    x = 14,784,413,642.47/140,117.90
  6. Step 6: Final answer
    x = 105,514.10

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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.