Home / 105,210.99-145,187.46-59,885.55

Finding the Fourth Proportional to 105,210.99, 145,187.46 and 59,885.55

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Solution

The fourth proportional to 105,210.99, 145,187.46 and 59,885.55 is: 82,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,210.99 : 145,187.46 = 59,885.55 : x
  2. Step 2: Convert to fraction form
    105,210.99/145,187.46 = 59,885.55/x
  3. Step 3: Cross multiply
    105,210.99x = 145,187.46 × 59,885.55
  4. Step 4: Simplify right side
    105,210.99x = 8,694,630,895.20
  5. Step 5: Solve for x
    x = 8,694,630,895.20/105,210.99
  6. Step 6: Final answer
    x = 82,639.95

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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.