Home / 115,581.96-159,501.22-64,595.40

Finding the Fourth Proportional to 115,581.96, 159,501.22 and 64,595.40

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Solution

The fourth proportional to 115,581.96, 159,501.22 and 64,595.40 is: 89,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,581.96 : 159,501.22 = 64,595.40 : x
  2. Step 2: Convert to fraction form
    115,581.96/159,501.22 = 64,595.40/x
  3. Step 3: Cross multiply
    115,581.96x = 159,501.22 × 64,595.40
  4. Step 4: Simplify right side
    115,581.96x = 10,303,045,106.39
  5. Step 5: Solve for x
    x = 10,303,045,106.39/115,581.96
  6. Step 6: Final answer
    x = 89,140.60

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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.