Home / 118,387.96-163,386.63-64,681.07

Finding the Fourth Proportional to 118,387.96, 163,386.63 and 64,681.07

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Solution

The fourth proportional to 118,387.96, 163,386.63 and 64,681.07 is: 89,266.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,387.96 : 163,386.63 = 64,681.07 : x
  2. Step 2: Convert to fraction form
    118,387.96/163,386.63 = 64,681.07/x
  3. Step 3: Cross multiply
    118,387.96x = 163,386.63 × 64,681.07
  4. Step 4: Simplify right side
    118,387.96x = 10,568,021,235.16
  5. Step 5: Solve for x
    x = 10,568,021,235.16/118,387.96
  6. Step 6: Final answer
    x = 89,266.02

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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.