Home / 207,710.10-286,640.08-112,216.76

Finding the Fourth Proportional to 207,710.10, 286,640.08 and 112,216.76

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Solution

The fourth proportional to 207,710.10, 286,640.08 and 112,216.76 is: 154,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,710.10 : 286,640.08 = 112,216.76 : x
  2. Step 2: Convert to fraction form
    207,710.10/286,640.08 = 112,216.76/x
  3. Step 3: Cross multiply
    207,710.10x = 286,640.08 × 112,216.76
  4. Step 4: Simplify right side
    207,710.10x = 32,165,821,063.74
  5. Step 5: Solve for x
    x = 32,165,821,063.74/207,710.10
  6. Step 6: Final answer
    x = 154,859.21

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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.