Home / 152,823.80-229,235.70-87,287.80

Finding the Fourth Proportional to 152,823.80, 229,235.70 and 87,287.80

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Solution

The fourth proportional to 152,823.80, 229,235.70 and 87,287.80 is: 130,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,823.80 : 229,235.70 = 87,287.80 : x
  2. Step 2: Convert to fraction form
    152,823.80/229,235.70 = 87,287.80/x
  3. Step 3: Cross multiply
    152,823.80x = 229,235.70 × 87,287.80
  4. Step 4: Simplify right side
    152,823.80x = 20,009,479,934.46
  5. Step 5: Solve for x
    x = 20,009,479,934.46/152,823.80
  6. Step 6: Final answer
    x = 130,931.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.