Home / 112,831.65-155,701.35-61,834.66

Finding the Fourth Proportional to 112,831.65, 155,701.35 and 61,834.66

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Solution

The fourth proportional to 112,831.65, 155,701.35 and 61,834.66 is: 85,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,831.65 : 155,701.35 = 61,834.66 : x
  2. Step 2: Convert to fraction form
    112,831.65/155,701.35 = 61,834.66/x
  3. Step 3: Cross multiply
    112,831.65x = 155,701.35 × 61,834.66
  4. Step 4: Simplify right side
    112,831.65x = 9,627,740,233.42
  5. Step 5: Solve for x
    x = 9,627,740,233.42/112,831.65
  6. Step 6: Final answer
    x = 85,328.36

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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.