Home / 118,397.61-163,386.65-64,681.25

Finding the Fourth Proportional to 118,397.61, 163,386.65 and 64,681.25

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Solution

The fourth proportional to 118,397.61, 163,386.65 and 64,681.25 is: 89,259.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,397.61 : 163,386.65 = 64,681.25 : x
  2. Step 2: Convert to fraction form
    118,397.61/163,386.65 = 64,681.25/x
  3. Step 3: Cross multiply
    118,397.61x = 163,386.65 × 64,681.25
  4. Step 4: Simplify right side
    118,397.61x = 10,568,052,100.08
  5. Step 5: Solve for x
    x = 10,568,052,100.08/118,397.61
  6. Step 6: Final answer
    x = 89,259.00

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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.