Home / 152,346.54-210,240.36-87,780.12

Finding the Fourth Proportional to 152,346.54, 210,240.36 and 87,780.12

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Solution

The fourth proportional to 152,346.54, 210,240.36 and 87,780.12 is: 121,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,346.54 : 210,240.36 = 87,780.12 : x
  2. Step 2: Convert to fraction form
    152,346.54/210,240.36 = 87,780.12/x
  3. Step 3: Cross multiply
    152,346.54x = 210,240.36 × 87,780.12
  4. Step 4: Simplify right side
    152,346.54x = 18,454,924,029.64
  5. Step 5: Solve for x
    x = 18,454,924,029.64/152,346.54
  6. Step 6: Final answer
    x = 121,137.80

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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.