Home / 120,547.71-166,355.57-66,831.35

Finding the Fourth Proportional to 120,547.71, 166,355.57 and 66,831.35

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Solution

The fourth proportional to 120,547.71, 166,355.57 and 66,831.35 is: 92,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,547.71 : 166,355.57 = 66,831.35 : x
  2. Step 2: Convert to fraction form
    120,547.71/166,355.57 = 66,831.35/x
  3. Step 3: Cross multiply
    120,547.71x = 166,355.57 × 66,831.35
  4. Step 4: Simplify right side
    120,547.71x = 11,117,766,157.18
  5. Step 5: Solve for x
    x = 11,117,766,157.18/120,547.71
  6. Step 6: Final answer
    x = 92,227.10

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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.