Home / 172,085.04-258,088.64-65,430.95

Finding the Fourth Proportional to 172,085.04, 258,088.64 and 65,430.95

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Solution

The fourth proportional to 172,085.04, 258,088.64 and 65,430.95 is: 98,131.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,085.04 : 258,088.64 = 65,430.95 : x
  2. Step 2: Convert to fraction form
    172,085.04/258,088.64 = 65,430.95/x
  3. Step 3: Cross multiply
    172,085.04x = 258,088.64 × 65,430.95
  4. Step 4: Simplify right side
    172,085.04x = 16,886,983,281.81
  5. Step 5: Solve for x
    x = 16,886,983,281.81/172,085.04
  6. Step 6: Final answer
    x = 98,131.62

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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.