Home / 156,316.58-215,688.48-87,407.29

Finding the Fourth Proportional to 156,316.58, 215,688.48 and 87,407.29

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Solution

The fourth proportional to 156,316.58, 215,688.48 and 87,407.29 is: 120,606.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,316.58 : 215,688.48 = 87,407.29 : x
  2. Step 2: Convert to fraction form
    156,316.58/215,688.48 = 87,407.29/x
  3. Step 3: Cross multiply
    156,316.58x = 215,688.48 × 87,407.29
  4. Step 4: Simplify right side
    156,316.58x = 18,852,745,521.02
  5. Step 5: Solve for x
    x = 18,852,745,521.02/156,316.58
  6. Step 6: Final answer
    x = 120,606.18

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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.