Home / 152,118.36-209,931.21-87,597.18

Finding the Fourth Proportional to 152,118.36, 209,931.21 and 87,597.18

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Solution

The fourth proportional to 152,118.36, 209,931.21 and 87,597.18 is: 120,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,118.36 : 209,931.21 = 87,597.18 : x
  2. Step 2: Convert to fraction form
    152,118.36/209,931.21 = 87,597.18/x
  3. Step 3: Cross multiply
    152,118.36x = 209,931.21 × 87,597.18
  4. Step 4: Simplify right side
    152,118.36x = 18,389,381,989.99
  5. Step 5: Solve for x
    x = 18,389,381,989.99/152,118.36
  6. Step 6: Final answer
    x = 120,888.64

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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.