Home / 153,931.86-230,573.70-78,823.80

Finding the Fourth Proportional to 153,931.86, 230,573.70 and 78,823.80

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Solution

The fourth proportional to 153,931.86, 230,573.70 and 78,823.80 is: 118,069.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,931.86 : 230,573.70 = 78,823.80 : x
  2. Step 2: Convert to fraction form
    153,931.86/230,573.70 = 78,823.80/x
  3. Step 3: Cross multiply
    153,931.86x = 230,573.70 × 78,823.80
  4. Step 4: Simplify right side
    153,931.86x = 18,174,695,214.06
  5. Step 5: Solve for x
    x = 18,174,695,214.06/153,931.86
  6. Step 6: Final answer
    x = 118,069.74

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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.