Home / 140,122.04-193,368.13-78,863.29

Finding the Fourth Proportional to 140,122.04, 193,368.13 and 78,863.29

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Solution

The fourth proportional to 140,122.04, 193,368.13 and 78,863.29 is: 108,831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,122.04 : 193,368.13 = 78,863.29 : x
  2. Step 2: Convert to fraction form
    140,122.04/193,368.13 = 78,863.29/x
  3. Step 3: Cross multiply
    140,122.04x = 193,368.13 × 78,863.29
  4. Step 4: Simplify right side
    140,122.04x = 15,249,646,232.37
  5. Step 5: Solve for x
    x = 15,249,646,232.37/140,122.04
  6. Step 6: Final answer
    x = 108,831.18

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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.