Home / 98,012.34-135,207.18-64,040.70

Finding the Fourth Proportional to 98,012.34, 135,207.18 and 64,040.70

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Solution

The fourth proportional to 98,012.34, 135,207.18 and 64,040.70 is: 88,343.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,012.34 : 135,207.18 = 64,040.70 : x
  2. Step 2: Convert to fraction form
    98,012.34/135,207.18 = 64,040.70/x
  3. Step 3: Cross multiply
    98,012.34x = 135,207.18 × 64,040.70
  4. Step 4: Simplify right side
    98,012.34x = 8,658,762,452.23
  5. Step 5: Solve for x
    x = 8,658,762,452.23/98,012.34
  6. Step 6: Final answer
    x = 88,343.59

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1.5x scale

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.