Home / 163,085.16-225,057.12-90,499.08

Finding the Fourth Proportional to 163,085.16, 225,057.12 and 90,499.08

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Solution

The fourth proportional to 163,085.16, 225,057.12 and 90,499.08 is: 124,888.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,085.16 : 225,057.12 = 90,499.08 : x
  2. Step 2: Convert to fraction form
    163,085.16/225,057.12 = 90,499.08/x
  3. Step 3: Cross multiply
    163,085.16x = 225,057.12 × 90,499.08
  4. Step 4: Simplify right side
    163,085.16x = 20,367,462,307.45
  5. Step 5: Solve for x
    x = 20,367,462,307.45/163,085.16
  6. Step 6: Final answer
    x = 124,888.51

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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.