Home / 207,017.40-310,336.02-66,703.80

Finding the Fourth Proportional to 207,017.40, 310,336.02 and 66,703.80

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Solution

The fourth proportional to 207,017.40, 310,336.02 and 66,703.80 is: 99,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,017.40 : 310,336.02 = 66,703.80 : x
  2. Step 2: Convert to fraction form
    207,017.40/310,336.02 = 66,703.80/x
  3. Step 3: Cross multiply
    207,017.40x = 310,336.02 × 66,703.80
  4. Step 4: Simplify right side
    207,017.40x = 20,700,591,810.88
  5. Step 5: Solve for x
    x = 20,700,591,810.88/207,017.40
  6. Step 6: Final answer
    x = 99,994.45

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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.