Home / 145,189.02-217,784.64-40,013.76

Finding the Fourth Proportional to 145,189.02, 217,784.64 and 40,013.76

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Solution

The fourth proportional to 145,189.02, 217,784.64 and 40,013.76 is: 60,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,189.02 : 217,784.64 = 40,013.76 : x
  2. Step 2: Convert to fraction form
    145,189.02/217,784.64 = 40,013.76/x
  3. Step 3: Cross multiply
    145,189.02x = 217,784.64 × 40,013.76
  4. Step 4: Simplify right side
    145,189.02x = 8,714,382,316.65
  5. Step 5: Solve for x
    x = 8,714,382,316.65/145,189.02
  6. Step 6: Final answer
    x = 60,020.95

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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.