Home / 123,129,955.31-169,878,079.64-70,917,945.71

Finding the Fourth Proportional to 123,129,955.31, 169,878,079.64 and 70,917,945.71

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Solution

The fourth proportional to 123,129,955.31, 169,878,079.64 and 70,917,945.71 is: 97,843,001.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,129,955.31 : 169,878,079.64 = 70,917,945.71 : x
  2. Step 2: Convert to fraction form
    123,129,955.31/169,878,079.64 = 70,917,945.71/x
  3. Step 3: Cross multiply
    123,129,955.31x = 169,878,079.64 × 70,917,945.71
  4. Step 4: Simplify right side
    123,129,955.31x = 12,047,404,428,556,482
  5. Step 5: Solve for x
    x = 12,047,404,428,556,482/123,129,955.31
  6. Step 6: Final answer
    x = 97,843,001.72

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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.