Home / 130,141.08-179,574.57-76,421.07

Finding the Fourth Proportional to 130,141.08, 179,574.57 and 76,421.07

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Solution

The fourth proportional to 130,141.08, 179,574.57 and 76,421.07 is: 105,449.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,141.08 : 179,574.57 = 76,421.07 : x
  2. Step 2: Convert to fraction form
    130,141.08/179,574.57 = 76,421.07/x
  3. Step 3: Cross multiply
    130,141.08x = 179,574.57 × 76,421.07
  4. Step 4: Simplify right side
    130,141.08x = 13,723,280,784.19
  5. Step 5: Solve for x
    x = 13,723,280,784.19/130,141.08
  6. Step 6: Final answer
    x = 105,449.26

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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.