Home / 155,095.42-214,032.54-87,112.40

Finding the Fourth Proportional to 155,095.42, 214,032.54 and 87,112.40

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Solution

The fourth proportional to 155,095.42, 214,032.54 and 87,112.40 is: 120,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,095.42 : 214,032.54 = 87,112.40 : x
  2. Step 2: Convert to fraction form
    155,095.42/214,032.54 = 87,112.40/x
  3. Step 3: Cross multiply
    155,095.42x = 214,032.54 × 87,112.40
  4. Step 4: Simplify right side
    155,095.42x = 18,644,888,237.50
  5. Step 5: Solve for x
    x = 18,644,888,237.50/155,095.42
  6. Step 6: Final answer
    x = 120,215.60

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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.