Home / 145,528.40-218,249.40-56,730.80

Finding the Fourth Proportional to 145,528.40, 218,249.40 and 56,730.80

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Solution

The fourth proportional to 145,528.40, 218,249.40 and 56,730.80 is: 85,079.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,528.40 : 218,249.40 = 56,730.80 : x
  2. Step 2: Convert to fraction form
    145,528.40/218,249.40 = 56,730.80/x
  3. Step 3: Cross multiply
    145,528.40x = 218,249.40 × 56,730.80
  4. Step 4: Simplify right side
    145,528.40x = 12,381,463,061.52
  5. Step 5: Solve for x
    x = 12,381,463,061.52/145,528.40
  6. Step 6: Final answer
    x = 85,079.36

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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.