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Finding the Fourth Proportional to 109,314.40, 163,600.95 and 67,220.93

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Solution

The fourth proportional to 109,314.40, 163,600.95 and 67,220.93 is: 100,603.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,314.40 : 163,600.95 = 67,220.93 : x
  2. Step 2: Convert to fraction form
    109,314.40/163,600.95 = 67,220.93/x
  3. Step 3: Cross multiply
    109,314.40x = 163,600.95 × 67,220.93
  4. Step 4: Simplify right side
    109,314.40x = 10,997,406,853.77
  5. Step 5: Solve for x
    x = 10,997,406,853.77/109,314.40
  6. Step 6: Final answer
    x = 100,603.46

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1.5x scale

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.