Home / 208,011.10-287,053.96-112,515.75

Finding the Fourth Proportional to 208,011.10, 287,053.96 and 112,515.75

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Solution

The fourth proportional to 208,011.10, 287,053.96 and 112,515.75 is: 155,271.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,011.10 : 287,053.96 = 112,515.75 : x
  2. Step 2: Convert to fraction form
    208,011.10/287,053.96 = 112,515.75/x
  3. Step 3: Cross multiply
    208,011.10x = 287,053.96 × 112,515.75
  4. Step 4: Simplify right side
    208,011.10x = 32,298,091,599.87
  5. Step 5: Solve for x
    x = 32,298,091,599.87/208,011.10
  6. Step 6: Final answer
    x = 155,271.00

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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.