Home / 145,301.04-200,504.40-81,626.40

Finding the Fourth Proportional to 145,301.04, 200,504.40 and 81,626.40

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Solution

The fourth proportional to 145,301.04, 200,504.40 and 81,626.40 is: 112,638.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,301.04 : 200,504.40 = 81,626.40 : x
  2. Step 2: Convert to fraction form
    145,301.04/200,504.40 = 81,626.40/x
  3. Step 3: Cross multiply
    145,301.04x = 200,504.40 × 81,626.40
  4. Step 4: Simplify right side
    145,301.04x = 16,366,452,356.16
  5. Step 5: Solve for x
    x = 16,366,452,356.16/145,301.04
  6. Step 6: Final answer
    x = 112,638.23

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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.