Home / 208,087.32-287,159.58-112,595.70

Finding the Fourth Proportional to 208,087.32, 287,159.58 and 112,595.70

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Solution

The fourth proportional to 208,087.32, 287,159.58 and 112,595.70 is: 155,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,087.32 : 287,159.58 = 112,595.70 : x
  2. Step 2: Convert to fraction form
    208,087.32/287,159.58 = 112,595.70/x
  3. Step 3: Cross multiply
    208,087.32x = 287,159.58 × 112,595.70
  4. Step 4: Simplify right side
    208,087.32x = 32,332,933,921.81
  5. Step 5: Solve for x
    x = 32,332,933,921.81/208,087.32
  6. Step 6: Final answer
    x = 155,381.57

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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.