Home / 159,025.83-219,457.35-86,428.74

Finding the Fourth Proportional to 159,025.83, 219,457.35 and 86,428.74

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Solution

The fourth proportional to 159,025.83, 219,457.35 and 86,428.74 is: 119,272.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,025.83 : 219,457.35 = 86,428.74 : x
  2. Step 2: Convert to fraction form
    159,025.83/219,457.35 = 86,428.74/x
  3. Step 3: Cross multiply
    159,025.83x = 219,457.35 × 86,428.74
  4. Step 4: Simplify right side
    159,025.83x = 18,967,421,832.76
  5. Step 5: Solve for x
    x = 18,967,421,832.76/159,025.83
  6. Step 6: Final answer
    x = 119,272.58

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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.