Home / 105,271.04-145,269.68-62,278.40

Finding the Fourth Proportional to 105,271.04, 145,269.68 and 62,278.40

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Solution

The fourth proportional to 105,271.04, 145,269.68 and 62,278.40 is: 85,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,271.04 : 145,269.68 = 62,278.40 : x
  2. Step 2: Convert to fraction form
    105,271.04/145,269.68 = 62,278.40/x
  3. Step 3: Cross multiply
    105,271.04x = 145,269.68 × 62,278.40
  4. Step 4: Simplify right side
    105,271.04x = 9,047,163,238.91
  5. Step 5: Solve for x
    x = 9,047,163,238.91/105,271.04
  6. Step 6: Final answer
    x = 85,941.62

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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.