Home / 125,312,257.17-172,941,858-73,118,107.89

Finding the Fourth Proportional to 125,312,257.17, 172,941,858 and 73,118,107.89

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Solution

The fourth proportional to 125,312,257.17, 172,941,858 and 73,118,107.89 is: 100,909,374.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,312,257.17 : 172,941,858 = 73,118,107.89 : x
  2. Step 2: Convert to fraction form
    125,312,257.17/172,941,858 = 73,118,107.89/x
  3. Step 3: Cross multiply
    125,312,257.17x = 172,941,858 × 73,118,107.89
  4. Step 4: Simplify right side
    125,312,257.17x = 12,645,181,431,941,060
  5. Step 5: Solve for x
    x = 12,645,181,431,941,060/125,312,257.17
  6. Step 6: Final answer
    x = 100,909,374.05

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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.