Home / 105,275.36-145,278.88-59,330.72

Finding the Fourth Proportional to 105,275.36, 145,278.88 and 59,330.72

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Solution

The fourth proportional to 105,275.36, 145,278.88 and 59,330.72 is: 81,875.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,275.36 : 145,278.88 = 59,330.72 : x
  2. Step 2: Convert to fraction form
    105,275.36/145,278.88 = 59,330.72/x
  3. Step 3: Cross multiply
    105,275.36x = 145,278.88 × 59,330.72
  4. Step 4: Simplify right side
    105,275.36x = 8,619,500,551.19
  5. Step 5: Solve for x
    x = 8,619,500,551.19/105,275.36
  6. Step 6: Final answer
    x = 81,875.76

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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.