Home / 202,017.08-278,785.47-111,376.22

Finding the Fourth Proportional to 202,017.08, 278,785.47 and 111,376.22

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Solution

The fourth proportional to 202,017.08, 278,785.47 and 111,376.22 is: 153,700.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,017.08 : 278,785.47 = 111,376.22 : x
  2. Step 2: Convert to fraction form
    202,017.08/278,785.47 = 111,376.22/x
  3. Step 3: Cross multiply
    202,017.08x = 278,785.47 × 111,376.22
  4. Step 4: Simplify right side
    202,017.08x = 31,050,071,839.52
  5. Step 5: Solve for x
    x = 31,050,071,839.52/202,017.08
  6. Step 6: Final answer
    x = 153,700.23

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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.