Home / 161,626.32-223,043.76-90,007.20

Finding the Fourth Proportional to 161,626.32, 223,043.76 and 90,007.20

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Solution

The fourth proportional to 161,626.32, 223,043.76 and 90,007.20 is: 124,209.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,626.32 : 223,043.76 = 90,007.20 : x
  2. Step 2: Convert to fraction form
    161,626.32/223,043.76 = 90,007.20/x
  3. Step 3: Cross multiply
    161,626.32x = 223,043.76 × 90,007.20
  4. Step 4: Simplify right side
    161,626.32x = 20,075,544,315.07
  5. Step 5: Solve for x
    x = 20,075,544,315.07/161,626.32
  6. Step 6: Final answer
    x = 124,209.62

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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.