Home / 105,299.16-145,322.79-57,559.59

Finding the Fourth Proportional to 105,299.16, 145,322.79 and 57,559.59

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Solution

The fourth proportional to 105,299.16, 145,322.79 and 57,559.59 is: 79,437.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,299.16 : 145,322.79 = 57,559.59 : x
  2. Step 2: Convert to fraction form
    105,299.16/145,322.79 = 57,559.59/x
  3. Step 3: Cross multiply
    105,299.16x = 145,322.79 × 57,559.59
  4. Step 4: Simplify right side
    105,299.16x = 8,364,720,210.06
  5. Step 5: Solve for x
    x = 8,364,720,210.06/105,299.16
  6. Step 6: Final answer
    x = 79,437.67

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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.