Home / 147,455.04-203,487.36-80,387.04

Finding the Fourth Proportional to 147,455.04, 203,487.36 and 80,387.04

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Solution

The fourth proportional to 147,455.04, 203,487.36 and 80,387.04 is: 110,933.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,455.04 : 203,487.36 = 80,387.04 : x
  2. Step 2: Convert to fraction form
    147,455.04/203,487.36 = 80,387.04/x
  3. Step 3: Cross multiply
    147,455.04x = 203,487.36 × 80,387.04
  4. Step 4: Simplify right side
    147,455.04x = 16,357,746,547.81
  5. Step 5: Solve for x
    x = 16,357,746,547.81/147,455.04
  6. Step 6: Final answer
    x = 110,933.79

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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.