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Finding the Fourth Proportional to 145,362.60, 200,593.80 and 84,938.76

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Solution

The fourth proportional to 145,362.60, 200,593.80 and 84,938.76 is: 117,211.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,362.60 : 200,593.80 = 84,938.76 : x
  2. Step 2: Convert to fraction form
    145,362.60/200,593.80 = 84,938.76/x
  3. Step 3: Cross multiply
    145,362.60x = 200,593.80 × 84,938.76
  4. Step 4: Simplify right side
    145,362.60x = 17,038,188,635.69
  5. Step 5: Solve for x
    x = 17,038,188,635.69/145,362.60
  6. Step 6: Final answer
    x = 117,211.64

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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.