Home / 236,703.12-326,652.12-129,271.20

Finding the Fourth Proportional to 236,703.12, 326,652.12 and 129,271.20

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Solution

The fourth proportional to 236,703.12, 326,652.12 and 129,271.20 is: 178,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,703.12 : 326,652.12 = 129,271.20 : x
  2. Step 2: Convert to fraction form
    236,703.12/326,652.12 = 129,271.20/x
  3. Step 3: Cross multiply
    236,703.12x = 326,652.12 × 129,271.20
  4. Step 4: Simplify right side
    236,703.12x = 42,226,711,534.94
  5. Step 5: Solve for x
    x = 42,226,711,534.94/236,703.12
  6. Step 6: Final answer
    x = 178,395.25

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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.