Home / 155,715.28-214,887.10-84,095.32

Finding the Fourth Proportional to 155,715.28, 214,887.10 and 84,095.32

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Solution

The fourth proportional to 155,715.28, 214,887.10 and 84,095.32 is: 116,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,715.28 : 214,887.10 = 84,095.32 : x
  2. Step 2: Convert to fraction form
    155,715.28/214,887.10 = 84,095.32/x
  3. Step 3: Cross multiply
    155,715.28x = 214,887.10 × 84,095.32
  4. Step 4: Simplify right side
    155,715.28x = 18,070,999,438.37
  5. Step 5: Solve for x
    x = 18,070,999,438.37/155,715.28
  6. Step 6: Final answer
    x = 116,051.55

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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.