Home / 131,742.04-181,804.12-71,312.49

Finding the Fourth Proportional to 131,742.04, 181,804.12 and 71,312.49

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Solution

The fourth proportional to 131,742.04, 181,804.12 and 71,312.49 is: 98,411.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,742.04 : 181,804.12 = 71,312.49 : x
  2. Step 2: Convert to fraction form
    131,742.04/181,804.12 = 71,312.49/x
  3. Step 3: Cross multiply
    131,742.04x = 181,804.12 × 71,312.49
  4. Step 4: Simplify right side
    131,742.04x = 12,964,904,311.18
  5. Step 5: Solve for x
    x = 12,964,904,311.18/131,742.04
  6. Step 6: Final answer
    x = 98,411.29

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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.