Home / 130,448.08-180,045.66-79,477.48

Finding the Fourth Proportional to 130,448.08, 180,045.66 and 79,477.48

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Solution

The fourth proportional to 130,448.08, 180,045.66 and 79,477.48 is: 109,695.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,448.08 : 180,045.66 = 79,477.48 : x
  2. Step 2: Convert to fraction form
    130,448.08/180,045.66 = 79,477.48/x
  3. Step 3: Cross multiply
    130,448.08x = 180,045.66 × 79,477.48
  4. Step 4: Simplify right side
    130,448.08x = 14,309,575,341.74
  5. Step 5: Solve for x
    x = 14,309,575,341.74/130,448.08
  6. Step 6: Final answer
    x = 109,695.56

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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.