Home / 145,011.20-217,585.38-70,089.08

Finding the Fourth Proportional to 145,011.20, 217,585.38 and 70,089.08

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Solution

The fourth proportional to 145,011.20, 217,585.38 and 70,089.08 is: 105,166.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,011.20 : 217,585.38 = 70,089.08 : x
  2. Step 2: Convert to fraction form
    145,011.20/217,585.38 = 70,089.08/x
  3. Step 3: Cross multiply
    145,011.20x = 217,585.38 × 70,089.08
  4. Step 4: Simplify right side
    145,011.20x = 15,250,359,105.65
  5. Step 5: Solve for x
    x = 15,250,359,105.65/145,011.20
  6. Step 6: Final answer
    x = 105,166.77

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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.