Home / 210,001.23-315,077.02-90,007.83

Finding the Fourth Proportional to 210,001.23, 315,077.02 and 90,007.83

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Solution

The fourth proportional to 210,001.23, 315,077.02 and 90,007.83 is: 135,043.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,001.23 : 315,077.02 = 90,007.83 : x
  2. Step 2: Convert to fraction form
    210,001.23/315,077.02 = 90,007.83/x
  3. Step 3: Cross multiply
    210,001.23x = 315,077.02 × 90,007.83
  4. Step 4: Simplify right side
    210,001.23x = 28,359,398,853.07
  5. Step 5: Solve for x
    x = 28,359,398,853.07/210,001.23
  6. Step 6: Final answer
    x = 135,043.97

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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.