Home / 152,073.35-209,854.29-87,544.70

Finding the Fourth Proportional to 152,073.35, 209,854.29 and 87,544.70

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Solution

The fourth proportional to 152,073.35, 209,854.29 and 87,544.70 is: 120,807.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,073.35 : 209,854.29 = 87,544.70 : x
  2. Step 2: Convert to fraction form
    152,073.35/209,854.29 = 87,544.70/x
  3. Step 3: Cross multiply
    152,073.35x = 209,854.29 × 87,544.70
  4. Step 4: Simplify right side
    152,073.35x = 18,371,630,927.74
  5. Step 5: Solve for x
    x = 18,371,630,927.74/152,073.35
  6. Step 6: Final answer
    x = 120,807.70

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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.