Home / 111,923,972-167,681,352-81,142,316.48

Finding the Fourth Proportional to 111,923,972, 167,681,352 and 81,142,316.48

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Solution

The fourth proportional to 111,923,972, 167,681,352 and 81,142,316.48 is: 121,565,140.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,923,972 : 167,681,352 = 81,142,316.48 : x
  2. Step 2: Convert to fraction form
    111,923,972/167,681,352 = 81,142,316.48/x
  3. Step 3: Cross multiply
    111,923,972x = 167,681,352 × 81,142,316.48
  4. Step 4: Simplify right side
    111,923,972x = 13,606,053,331,778,282
  5. Step 5: Solve for x
    x = 13,606,053,331,778,282/111,923,972
  6. Step 6: Final answer
    x = 121,565,140.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.