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Finding the Fourth Proportional to 101,739.80, 152,609.70 and 51,973.40

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Solution

The fourth proportional to 101,739.80, 152,609.70 and 51,973.40 is: 77,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,739.80 : 152,609.70 = 51,973.40 : x
  2. Step 2: Convert to fraction form
    101,739.80/152,609.70 = 51,973.40/x
  3. Step 3: Cross multiply
    101,739.80x = 152,609.70 × 51,973.40
  4. Step 4: Simplify right side
    101,739.80x = 7,931,644,981.98
  5. Step 5: Solve for x
    x = 7,931,644,981.98/101,739.80
  6. Step 6: Final answer
    x = 77,960.10

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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.