Home / 105,695.89-158,365.53-52,316.69

Finding the Fourth Proportional to 105,695.89, 158,365.53 and 52,316.69

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Solution

The fourth proportional to 105,695.89, 158,365.53 and 52,316.69 is: 78,386.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,695.89 : 158,365.53 = 52,316.69 : x
  2. Step 2: Convert to fraction form
    105,695.89/158,365.53 = 52,316.69/x
  3. Step 3: Cross multiply
    105,695.89x = 158,365.53 × 52,316.69
  4. Step 4: Simplify right side
    105,695.89x = 8,285,159,547.87
  5. Step 5: Solve for x
    x = 8,285,159,547.87/105,695.89
  6. Step 6: Final answer
    x = 78,386.77

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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.