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Finding the Fourth Proportional to 72,700.80, 102,014.40 and 72,700.80

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Solution

The fourth proportional to 72,700.80, 102,014.40 and 72,700.80 is: 102,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,700.80 : 102,014.40 = 72,700.80 : x
  2. Step 2: Convert to fraction form
    72,700.80/102,014.40 = 72,700.80/x
  3. Step 3: Cross multiply
    72,700.80x = 102,014.40 × 72,700.80
  4. Step 4: Simplify right side
    72,700.80x = 7,416,528,491.52
  5. Step 5: Solve for x
    x = 7,416,528,491.52/72,700.80
  6. Step 6: Final answer
    x = 102,014.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.