Home / 102,941,721.16-142,091,421.42-66,272,263

Finding the Fourth Proportional to 102,941,721.16, 142,091,421.42 and 66,272,263

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Solution

The fourth proportional to 102,941,721.16, 142,091,421.42 and 66,272,263 is: 91,476,225.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,941,721.16 : 142,091,421.42 = 66,272,263 : x
  2. Step 2: Convert to fraction form
    102,941,721.16/142,091,421.42 = 66,272,263/x
  3. Step 3: Cross multiply
    102,941,721.16x = 142,091,421.42 × 66,272,263
  4. Step 4: Simplify right side
    102,941,721.16x = 9,416,720,050,390,072
  5. Step 5: Solve for x
    x = 9,416,720,050,390,072/102,941,721.16
  6. Step 6: Final answer
    x = 91,476,225.04

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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.