Home / 105,285.75-145,301.34-59,356.72

Finding the Fourth Proportional to 105,285.75, 145,301.34 and 59,356.72

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Solution

The fourth proportional to 105,285.75, 145,301.34 and 59,356.72 is: 81,916.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,285.75 : 145,301.34 = 59,356.72 : x
  2. Step 2: Convert to fraction form
    105,285.75/145,301.34 = 59,356.72/x
  3. Step 3: Cross multiply
    105,285.75x = 145,301.34 × 59,356.72
  4. Step 4: Simplify right side
    105,285.75x = 8,624,610,954.00
  5. Step 5: Solve for x
    x = 8,624,610,954.00/105,285.75
  6. Step 6: Final answer
    x = 81,916.22

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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.