Home / 109,051.20-163,490.40-59,803.20

Finding the Fourth Proportional to 109,051.20, 163,490.40 and 59,803.20

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Solution

The fourth proportional to 109,051.20, 163,490.40 and 59,803.20 is: 89,657.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,051.20 : 163,490.40 = 59,803.20 : x
  2. Step 2: Convert to fraction form
    109,051.20/163,490.40 = 59,803.20/x
  3. Step 3: Cross multiply
    109,051.20x = 163,490.40 × 59,803.20
  4. Step 4: Simplify right side
    109,051.20x = 9,777,249,089.28
  5. Step 5: Solve for x
    x = 9,777,249,089.28/109,051.20
  6. Step 6: Final answer
    x = 89,657.42

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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.