Home / 155,035.95-213,946.88-87,053.46

Finding the Fourth Proportional to 155,035.95, 213,946.88 and 87,053.46

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Solution

The fourth proportional to 155,035.95, 213,946.88 and 87,053.46 is: 120,132.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,035.95 : 213,946.88 = 87,053.46 : x
  2. Step 2: Convert to fraction form
    155,035.95/213,946.88 = 87,053.46/x
  3. Step 3: Cross multiply
    155,035.95x = 213,946.88 × 87,053.46
  4. Step 4: Simplify right side
    155,035.95x = 18,624,815,090.47
  5. Step 5: Solve for x
    x = 18,624,815,090.47/155,035.95
  6. Step 6: Final answer
    x = 120,132.24

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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.