Home / 131,386.24-181,292.16-74,798.72

Finding the Fourth Proportional to 131,386.24, 181,292.16 and 74,798.72

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Solution

The fourth proportional to 131,386.24, 181,292.16 and 74,798.72 is: 103,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,386.24 : 181,292.16 = 74,798.72 : x
  2. Step 2: Convert to fraction form
    131,386.24/181,292.16 = 74,798.72/x
  3. Step 3: Cross multiply
    131,386.24x = 181,292.16 × 74,798.72
  4. Step 4: Simplify right side
    131,386.24x = 13,560,421,514.04
  5. Step 5: Solve for x
    x = 13,560,421,514.04/131,386.24
  6. Step 6: Final answer
    x = 103,210.36

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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.