Home / 138,066.16-190,545.73-84,386.93

Finding the Fourth Proportional to 138,066.16, 190,545.73 and 84,386.93

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Solution

The fourth proportional to 138,066.16, 190,545.73 and 84,386.93 is: 116,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,066.16 : 190,545.73 = 84,386.93 : x
  2. Step 2: Convert to fraction form
    138,066.16/190,545.73 = 84,386.93/x
  3. Step 3: Cross multiply
    138,066.16x = 190,545.73 × 84,386.93
  4. Step 4: Simplify right side
    138,066.16x = 16,079,569,179.31
  5. Step 5: Solve for x
    x = 16,079,569,179.31/138,066.16
  6. Step 6: Final answer
    x = 116,462.78

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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.