Home / 208,021.01-287,068.76-112,527.47

Finding the Fourth Proportional to 208,021.01, 287,068.76 and 112,527.47

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Solution

The fourth proportional to 208,021.01, 287,068.76 and 112,527.47 is: 155,287.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,021.01 : 287,068.76 = 112,527.47 : x
  2. Step 2: Convert to fraction form
    208,021.01/287,068.76 = 112,527.47/x
  3. Step 3: Cross multiply
    208,021.01x = 287,068.76 × 112,527.47
  4. Step 4: Simplify right side
    208,021.01x = 32,303,119,280.86
  5. Step 5: Solve for x
    x = 32,303,119,280.86/208,021.01
  6. Step 6: Final answer
    x = 155,287.78

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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.