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Finding the Fourth Proportional to 153,254.94, 211,460.12 and 89,580.43

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Solution

The fourth proportional to 153,254.94, 211,460.12 and 89,580.43 is: 123,602.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,254.94 : 211,460.12 = 89,580.43 : x
  2. Step 2: Convert to fraction form
    153,254.94/211,460.12 = 89,580.43/x
  3. Step 3: Cross multiply
    153,254.94x = 211,460.12 × 89,580.43
  4. Step 4: Simplify right side
    153,254.94x = 18,942,688,629.80
  5. Step 5: Solve for x
    x = 18,942,688,629.80/153,254.94
  6. Step 6: Final answer
    x = 123,602.47

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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.