Home / 105,272.04-145,271.06-62,279.40

Finding the Fourth Proportional to 105,272.04, 145,271.06 and 62,279.40

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Solution

The fourth proportional to 105,272.04, 145,271.06 and 62,279.40 is: 85,943.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,272.04 : 145,271.06 = 62,279.40 : x
  2. Step 2: Convert to fraction form
    105,272.04/145,271.06 = 62,279.40/x
  3. Step 3: Cross multiply
    105,272.04x = 145,271.06 × 62,279.40
  4. Step 4: Simplify right side
    105,272.04x = 9,047,394,454.16
  5. Step 5: Solve for x
    x = 9,047,394,454.16/105,272.04
  6. Step 6: Final answer
    x = 85,943.00

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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.