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Finding the Fourth Proportional to 134,894.60, 202,341.90 and 84,812.30

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Solution

The fourth proportional to 134,894.60, 202,341.90 and 84,812.30 is: 127,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,894.60 : 202,341.90 = 84,812.30 : x
  2. Step 2: Convert to fraction form
    134,894.60/202,341.90 = 84,812.30/x
  3. Step 3: Cross multiply
    134,894.60x = 202,341.90 × 84,812.30
  4. Step 4: Simplify right side
    134,894.60x = 17,161,081,925.37
  5. Step 5: Solve for x
    x = 17,161,081,925.37/134,894.60
  6. Step 6: Final answer
    x = 127,218.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.