Home / 105,749.04-145,937.76-58,004.40

Finding the Fourth Proportional to 105,749.04, 145,937.76 and 58,004.40

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Solution

The fourth proportional to 105,749.04, 145,937.76 and 58,004.40 is: 80,048.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,749.04 : 145,937.76 = 58,004.40 : x
  2. Step 2: Convert to fraction form
    105,749.04/145,937.76 = 58,004.40/x
  3. Step 3: Cross multiply
    105,749.04x = 145,937.76 × 58,004.40
  4. Step 4: Simplify right side
    105,749.04x = 8,465,032,206.14
  5. Step 5: Solve for x
    x = 8,465,032,206.14/105,749.04
  6. Step 6: Final answer
    x = 80,048.31

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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.