Home / 109,323.40-163,985.10-98,609.80

Finding the Fourth Proportional to 109,323.40, 163,985.10 and 98,609.80

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Solution

The fourth proportional to 109,323.40, 163,985.10 and 98,609.80 is: 147,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,323.40 : 163,985.10 = 98,609.80 : x
  2. Step 2: Convert to fraction form
    109,323.40/163,985.10 = 98,609.80/x
  3. Step 3: Cross multiply
    109,323.40x = 163,985.10 × 98,609.80
  4. Step 4: Simplify right side
    109,323.40x = 16,170,537,913.98
  5. Step 5: Solve for x
    x = 16,170,537,913.98/109,323.40
  6. Step 6: Final answer
    x = 147,914.70

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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.