Home / 255,875.14-383,856.45-87,386.23

Finding the Fourth Proportional to 255,875.14, 383,856.45 and 87,386.23

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Solution

The fourth proportional to 255,875.14, 383,856.45 and 87,386.23 is: 131,094.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,875.14 : 383,856.45 = 87,386.23 : x
  2. Step 2: Convert to fraction form
    255,875.14/383,856.45 = 87,386.23/x
  3. Step 3: Cross multiply
    255,875.14x = 383,856.45 × 87,386.23
  4. Step 4: Simplify right side
    255,875.14x = 33,543,768,026.68
  5. Step 5: Solve for x
    x = 33,543,768,026.68/255,875.14
  6. Step 6: Final answer
    x = 131,094.28

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1.5x scale

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.