Home / 210,851.10-316,319.85-70,710.30

Finding the Fourth Proportional to 210,851.10, 316,319.85 and 70,710.30

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Solution

The fourth proportional to 210,851.10, 316,319.85 and 70,710.30 is: 106,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,851.10 : 316,319.85 = 70,710.30 : x
  2. Step 2: Convert to fraction form
    210,851.10/316,319.85 = 70,710.30/x
  3. Step 3: Cross multiply
    210,851.10x = 316,319.85 × 70,710.30
  4. Step 4: Simplify right side
    210,851.10x = 22,367,071,489.46
  5. Step 5: Solve for x
    x = 22,367,071,489.46/210,851.10
  6. Step 6: Final answer
    x = 106,079.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.