Home / 145,113.12-217,628.37-56,347.65

Finding the Fourth Proportional to 145,113.12, 217,628.37 and 56,347.65

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Solution

The fourth proportional to 145,113.12, 217,628.37 and 56,347.65 is: 84,505.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,113.12 : 217,628.37 = 56,347.65 : x
  2. Step 2: Convert to fraction form
    145,113.12/217,628.37 = 56,347.65/x
  3. Step 3: Cross multiply
    145,113.12x = 217,628.37 × 56,347.65
  4. Step 4: Simplify right side
    145,113.12x = 12,262,847,222.83
  5. Step 5: Solve for x
    x = 12,262,847,222.83/145,113.12
  6. Step 6: Final answer
    x = 84,505.43

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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.