Home / 112,666,935.80-168,781,120.50-83,069,215.04

Finding the Fourth Proportional to 112,666,935.80, 168,781,120.50 and 83,069,215.04

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Solution

The fourth proportional to 112,666,935.80, 168,781,120.50 and 83,069,215.04 is: 124,442,145.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,666,935.80 : 168,781,120.50 = 83,069,215.04 : x
  2. Step 2: Convert to fraction form
    112,666,935.80/168,781,120.50 = 83,069,215.04/x
  3. Step 3: Cross multiply
    112,666,935.80x = 168,781,120.50 × 83,069,215.04
  4. Step 4: Simplify right side
    112,666,935.80x = 14,020,515,193,506,654
  5. Step 5: Solve for x
    x = 14,020,515,193,506,654/112,666,935.80
  6. Step 6: Final answer
    x = 124,442,145.28

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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.