Home / 208,109.04-287,191.24-112,615.74

Finding the Fourth Proportional to 208,109.04, 287,191.24 and 112,615.74

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Solution

The fourth proportional to 208,109.04, 287,191.24 and 112,615.74 is: 155,410.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,109.04 : 287,191.24 = 112,615.74 : x
  2. Step 2: Convert to fraction form
    208,109.04/287,191.24 = 112,615.74/x
  3. Step 3: Cross multiply
    208,109.04x = 287,191.24 × 112,615.74
  4. Step 4: Simplify right side
    208,109.04x = 32,342,254,014.12
  5. Step 5: Solve for x
    x = 32,342,254,014.12/208,109.04
  6. Step 6: Final answer
    x = 155,410.14

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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.