Home / 120,547.10-166,352.46-66,831.68

Finding the Fourth Proportional to 120,547.10, 166,352.46 and 66,831.68

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Solution

The fourth proportional to 120,547.10, 166,352.46 and 66,831.68 is: 92,226.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,547.10 : 166,352.46 = 66,831.68 : x
  2. Step 2: Convert to fraction form
    120,547.10/166,352.46 = 66,831.68/x
  3. Step 3: Cross multiply
    120,547.10x = 166,352.46 × 66,831.68
  4. Step 4: Simplify right side
    120,547.10x = 11,117,614,373.93
  5. Step 5: Solve for x
    x = 11,117,614,373.93/120,547.10
  6. Step 6: Final answer
    x = 92,226.31

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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.