Home / 109,742.95-151,445.21-64,420.93

Finding the Fourth Proportional to 109,742.95, 151,445.21 and 64,420.93

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Solution

The fourth proportional to 109,742.95, 151,445.21 and 64,420.93 is: 88,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,742.95 : 151,445.21 = 64,420.93 : x
  2. Step 2: Convert to fraction form
    109,742.95/151,445.21 = 64,420.93/x
  3. Step 3: Cross multiply
    109,742.95x = 151,445.21 × 64,420.93
  4. Step 4: Simplify right side
    109,742.95x = 9,756,240,893.63
  5. Step 5: Solve for x
    x = 9,756,240,893.63/109,742.95
  6. Step 6: Final answer
    x = 88,900.85

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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.