Home / 120,547.96-166,355.91-66,831.60

Finding the Fourth Proportional to 120,547.96, 166,355.91 and 66,831.60

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Solution

The fourth proportional to 120,547.96, 166,355.91 and 66,831.60 is: 92,227.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,547.96 : 166,355.91 = 66,831.60 : x
  2. Step 2: Convert to fraction form
    120,547.96/166,355.91 = 66,831.60/x
  3. Step 3: Cross multiply
    120,547.96x = 166,355.91 × 66,831.60
  4. Step 4: Simplify right side
    120,547.96x = 11,117,830,802.98
  5. Step 5: Solve for x
    x = 11,117,830,802.98/120,547.96
  6. Step 6: Final answer
    x = 92,227.45

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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.