Home / 102,189.44-141,024.12-56,870.48

Finding the Fourth Proportional to 102,189.44, 141,024.12 and 56,870.48

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Solution

The fourth proportional to 102,189.44, 141,024.12 and 56,870.48 is: 78,482.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,189.44 : 141,024.12 = 56,870.48 : x
  2. Step 2: Convert to fraction form
    102,189.44/141,024.12 = 56,870.48/x
  3. Step 3: Cross multiply
    102,189.44x = 141,024.12 × 56,870.48
  4. Step 4: Simplify right side
    102,189.44x = 8,020,109,395.98
  5. Step 5: Solve for x
    x = 8,020,109,395.98/102,189.44
  6. Step 6: Final answer
    x = 78,482.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.