Home / 152,585.74-210,545.58-87,169.78

Finding the Fourth Proportional to 152,585.74, 210,545.58 and 87,169.78

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Solution

The fourth proportional to 152,585.74, 210,545.58 and 87,169.78 is: 120,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,585.74 : 210,545.58 = 87,169.78 : x
  2. Step 2: Convert to fraction form
    152,585.74/210,545.58 = 87,169.78/x
  3. Step 3: Cross multiply
    152,585.74x = 210,545.58 × 87,169.78
  4. Step 4: Simplify right side
    152,585.74x = 18,353,211,888.57
  5. Step 5: Solve for x
    x = 18,353,211,888.57/152,585.74
  6. Step 6: Final answer
    x = 120,281.30

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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.