Home / 153,211.02-211,445.20-89,558.38

Finding the Fourth Proportional to 153,211.02, 211,445.20 and 89,558.38

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Solution

The fourth proportional to 153,211.02, 211,445.20 and 89,558.38 is: 123,598.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,211.02 : 211,445.20 = 89,558.38 : x
  2. Step 2: Convert to fraction form
    153,211.02/211,445.20 = 89,558.38/x
  3. Step 3: Cross multiply
    153,211.02x = 211,445.20 × 89,558.38
  4. Step 4: Simplify right side
    153,211.02x = 18,936,689,570.78
  5. Step 5: Solve for x
    x = 18,936,689,570.78/153,211.02
  6. Step 6: Final answer
    x = 123,598.74

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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.