Home / 152,397.12-210,290.06-87,865.64

Finding the Fourth Proportional to 152,397.12, 210,290.06 and 87,865.64

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Solution

The fourth proportional to 152,397.12, 210,290.06 and 87,865.64 is: 121,244.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,397.12 : 210,290.06 = 87,865.64 : x
  2. Step 2: Convert to fraction form
    152,397.12/210,290.06 = 87,865.64/x
  3. Step 3: Cross multiply
    152,397.12x = 210,290.06 × 87,865.64
  4. Step 4: Simplify right side
    152,397.12x = 18,477,269,216.76
  5. Step 5: Solve for x
    x = 18,477,269,216.76/152,397.12
  6. Step 6: Final answer
    x = 121,244.22

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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.