Home / 243,530.48-336,070.68-136,100.72

Finding the Fourth Proportional to 243,530.48, 336,070.68 and 136,100.72

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Solution

The fourth proportional to 243,530.48, 336,070.68 and 136,100.72 is: 187,818.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,530.48 : 336,070.68 = 136,100.72 : x
  2. Step 2: Convert to fraction form
    243,530.48/336,070.68 = 136,100.72/x
  3. Step 3: Cross multiply
    243,530.48x = 336,070.68 × 136,100.72
  4. Step 4: Simplify right side
    243,530.48x = 45,739,461,518.89
  5. Step 5: Solve for x
    x = 45,739,461,518.89/243,530.48
  6. Step 6: Final answer
    x = 187,818.22

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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.