Home / 156,828.04-216,422.34-85,208.34

Finding the Fourth Proportional to 156,828.04, 216,422.34 and 85,208.34

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Solution

The fourth proportional to 156,828.04, 216,422.34 and 85,208.34 is: 117,587.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,828.04 : 216,422.34 = 85,208.34 : x
  2. Step 2: Convert to fraction form
    156,828.04/216,422.34 = 85,208.34/x
  3. Step 3: Cross multiply
    156,828.04x = 216,422.34 × 85,208.34
  4. Step 4: Simplify right side
    156,828.04x = 18,440,988,330.32
  5. Step 5: Solve for x
    x = 18,440,988,330.32/156,828.04
  6. Step 6: Final answer
    x = 117,587.32

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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.