Home / 208,711.08-288,021.40-118,065.13

Finding the Fourth Proportional to 208,711.08, 288,021.40 and 118,065.13

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Solution

The fourth proportional to 208,711.08, 288,021.40 and 118,065.13 is: 162,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,711.08 : 288,021.40 = 118,065.13 : x
  2. Step 2: Convert to fraction form
    208,711.08/288,021.40 = 118,065.13/x
  3. Step 3: Cross multiply
    208,711.08x = 288,021.40 × 118,065.13
  4. Step 4: Simplify right side
    208,711.08x = 34,005,284,098.65
  5. Step 5: Solve for x
    x = 34,005,284,098.65/208,711.08
  6. Step 6: Final answer
    x = 162,929.94

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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.