Home / 123,716,163.36-170,725,842-68,710,139.04

Finding the Fourth Proportional to 123,716,163.36, 170,725,842 and 68,710,139.04

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Solution

The fourth proportional to 123,716,163.36, 170,725,842 and 68,710,139.04 is: 94,818,623.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,716,163.36 : 170,725,842 = 68,710,139.04 : x
  2. Step 2: Convert to fraction form
    123,716,163.36/170,725,842 = 68,710,139.04/x
  3. Step 3: Cross multiply
    123,716,163.36x = 170,725,842 × 68,710,139.04
  4. Step 4: Simplify right side
    123,716,163.36x = 11,730,596,341,541,072
  5. Step 5: Solve for x
    x = 11,730,596,341,541,072/123,716,163.36
  6. Step 6: Final answer
    x = 94,818,623.72

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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.