Home / 145,457.10-218,070.45-79,793.10

Finding the Fourth Proportional to 145,457.10, 218,070.45 and 79,793.10

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Solution

The fourth proportional to 145,457.10, 218,070.45 and 79,793.10 is: 119,626.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,457.10 : 218,070.45 = 79,793.10 : x
  2. Step 2: Convert to fraction form
    145,457.10/218,070.45 = 79,793.10/x
  3. Step 3: Cross multiply
    145,457.10x = 218,070.45 × 79,793.10
  4. Step 4: Simplify right side
    145,457.10x = 17,400,517,223.90
  5. Step 5: Solve for x
    x = 17,400,517,223.90/145,457.10
  6. Step 6: Final answer
    x = 119,626.45

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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.