Home / 145,661.28-218,493.60-61,435.68

Finding the Fourth Proportional to 145,661.28, 218,493.60 and 61,435.68

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Solution

The fourth proportional to 145,661.28, 218,493.60 and 61,435.68 is: 92,154.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,661.28 : 218,493.60 = 61,435.68 : x
  2. Step 2: Convert to fraction form
    145,661.28/218,493.60 = 61,435.68/x
  3. Step 3: Cross multiply
    145,661.28x = 218,493.60 × 61,435.68
  4. Step 4: Simplify right side
    145,661.28x = 13,423,302,891.65
  5. Step 5: Solve for x
    x = 13,423,302,891.65/145,661.28
  6. Step 6: Final answer
    x = 92,154.23

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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.