Home / 145,290.33-200,491.47-84,878.10

Finding the Fourth Proportional to 145,290.33, 200,491.47 and 84,878.10

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Solution

The fourth proportional to 145,290.33, 200,491.47 and 84,878.10 is: 117,126.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,290.33 : 200,491.47 = 84,878.10 : x
  2. Step 2: Convert to fraction form
    145,290.33/200,491.47 = 84,878.10/x
  3. Step 3: Cross multiply
    145,290.33x = 200,491.47 × 84,878.10
  4. Step 4: Simplify right side
    145,290.33x = 17,017,335,039.81
  5. Step 5: Solve for x
    x = 17,017,335,039.81/145,290.33
  6. Step 6: Final answer
    x = 117,126.41

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1.5x scale

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.