Home / 78,902.08-118,536.80-74,655.52

Finding the Fourth Proportional to 78,902.08, 118,536.80 and 74,655.52

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Solution

The fourth proportional to 78,902.08, 118,536.80 and 74,655.52 is: 112,157.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,902.08 : 118,536.80 = 74,655.52 : x
  2. Step 2: Convert to fraction form
    78,902.08/118,536.80 = 74,655.52/x
  3. Step 3: Cross multiply
    78,902.08x = 118,536.80 × 74,655.52
  4. Step 4: Simplify right side
    78,902.08x = 8,849,426,443.14
  5. Step 5: Solve for x
    x = 8,849,426,443.14/78,902.08
  6. Step 6: Final answer
    x = 112,157.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.