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Finding the Fourth Proportional to 109,065.60, 163,598.40 and 91,569.60

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Solution

The fourth proportional to 109,065.60, 163,598.40 and 91,569.60 is: 137,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,065.60 : 163,598.40 = 91,569.60 : x
  2. Step 2: Convert to fraction form
    109,065.60/163,598.40 = 91,569.60/x
  3. Step 3: Cross multiply
    109,065.60x = 163,598.40 × 91,569.60
  4. Step 4: Simplify right side
    109,065.60x = 14,980,640,048.64
  5. Step 5: Solve for x
    x = 14,980,640,048.64/109,065.60
  6. Step 6: Final answer
    x = 137,354.40

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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.