Home / 208,277.12-287,423.16-112,783.52

Finding the Fourth Proportional to 208,277.12, 287,423.16 and 112,783.52

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Solution

The fourth proportional to 208,277.12, 287,423.16 and 112,783.52 is: 155,641.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,277.12 : 287,423.16 = 112,783.52 : x
  2. Step 2: Convert to fraction form
    208,277.12/287,423.16 = 112,783.52/x
  3. Step 3: Cross multiply
    208,277.12x = 287,423.16 × 112,783.52
  4. Step 4: Simplify right side
    208,277.12x = 32,416,595,714.32
  5. Step 5: Solve for x
    x = 32,416,595,714.32/208,277.12
  6. Step 6: Final answer
    x = 155,641.66

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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.