Home / 105,386.60-145,435.98-60,068.79

Finding the Fourth Proportional to 105,386.60, 145,435.98 and 60,068.79

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Solution

The fourth proportional to 105,386.60, 145,435.98 and 60,068.79 is: 82,896.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,386.60 : 145,435.98 = 60,068.79 : x
  2. Step 2: Convert to fraction form
    105,386.60/145,435.98 = 60,068.79/x
  3. Step 3: Cross multiply
    105,386.60x = 145,435.98 × 60,068.79
  4. Step 4: Simplify right side
    105,386.60x = 8,736,163,341.06
  5. Step 5: Solve for x
    x = 8,736,163,341.06/105,386.60
  6. Step 6: Final answer
    x = 82,896.34

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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.