Home / 145,352-200,597.28-85,747.52

Finding the Fourth Proportional to 145,352, 200,597.28 and 85,747.52

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Solution

The fourth proportional to 145,352, 200,597.28 and 85,747.52 is: 118,338.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,352 : 200,597.28 = 85,747.52 : x
  2. Step 2: Convert to fraction form
    145,352/200,597.28 = 85,747.52/x
  3. Step 3: Cross multiply
    145,352x = 200,597.28 × 85,747.52
  4. Step 4: Simplify right side
    145,352x = 17,200,719,278.75
  5. Step 5: Solve for x
    x = 17,200,719,278.75/145,352
  6. Step 6: Final answer
    x = 118,338.37

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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.