Home / 145,014.50-217,595.57-66,118.48

Finding the Fourth Proportional to 145,014.50, 217,595.57 and 66,118.48

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Solution

The fourth proportional to 145,014.50, 217,595.57 and 66,118.48 is: 99,211.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,014.50 : 217,595.57 = 66,118.48 : x
  2. Step 2: Convert to fraction form
    145,014.50/217,595.57 = 66,118.48/x
  3. Step 3: Cross multiply
    145,014.50x = 217,595.57 × 66,118.48
  4. Step 4: Simplify right side
    145,014.50x = 14,387,087,468.55
  5. Step 5: Solve for x
    x = 14,387,087,468.55/145,014.50
  6. Step 6: Final answer
    x = 99,211.37

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1.5x scale

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.