Home / 208,707.12-288,013.59-113,212.98

Finding the Fourth Proportional to 208,707.12, 288,013.59 and 113,212.98

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Solution

The fourth proportional to 208,707.12, 288,013.59 and 113,212.98 is: 156,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,707.12 : 288,013.59 = 113,212.98 : x
  2. Step 2: Convert to fraction form
    208,707.12/288,013.59 = 113,212.98/x
  3. Step 3: Cross multiply
    208,707.12x = 288,013.59 × 113,212.98
  4. Step 4: Simplify right side
    208,707.12x = 32,606,876,804.40
  5. Step 5: Solve for x
    x = 32,606,876,804.40/208,707.12
  6. Step 6: Final answer
    x = 156,232.70

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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.