Home / 115,541.10-159,430.86-64,547.46

Finding the Fourth Proportional to 115,541.10, 159,430.86 and 64,547.46

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Solution

The fourth proportional to 115,541.10, 159,430.86 and 64,547.46 is: 89,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,541.10 : 159,430.86 = 64,547.46 : x
  2. Step 2: Convert to fraction form
    115,541.10/159,430.86 = 64,547.46/x
  3. Step 3: Cross multiply
    115,541.10x = 159,430.86 × 64,547.46
  4. Step 4: Simplify right side
    115,541.10x = 10,290,857,058.62
  5. Step 5: Solve for x
    x = 10,290,857,058.62/115,541.10
  6. Step 6: Final answer
    x = 89,066.64

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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.