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Finding the Fourth Proportional to 145,363.60, 200,595.18 and 84,939.76

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Solution

The fourth proportional to 145,363.60, 200,595.18 and 84,939.76 is: 117,213.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,363.60 : 200,595.18 = 84,939.76 : x
  2. Step 2: Convert to fraction form
    145,363.60/200,595.18 = 84,939.76/x
  3. Step 3: Cross multiply
    145,363.60x = 200,595.18 × 84,939.76
  4. Step 4: Simplify right side
    145,363.60x = 17,038,506,446.36
  5. Step 5: Solve for x
    x = 17,038,506,446.36/145,363.60
  6. Step 6: Final answer
    x = 117,213.02

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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.