Home / 163,543.72-225,692.34-99,012.08

Finding the Fourth Proportional to 163,543.72, 225,692.34 and 99,012.08

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Solution

The fourth proportional to 163,543.72, 225,692.34 and 99,012.08 is: 136,637.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,543.72 : 225,692.34 = 99,012.08 : x
  2. Step 2: Convert to fraction form
    163,543.72/225,692.34 = 99,012.08/x
  3. Step 3: Cross multiply
    163,543.72x = 225,692.34 × 99,012.08
  4. Step 4: Simplify right side
    163,543.72x = 22,346,268,023.47
  5. Step 5: Solve for x
    x = 22,346,268,023.47/163,543.72
  6. Step 6: Final answer
    x = 136,637.89

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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.