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Finding the Fourth Proportional to 180,765.72, 249,536.16 and 126,530.91

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Solution

The fourth proportional to 180,765.72, 249,536.16 and 126,530.91 is: 174,668.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,765.72 : 249,536.16 = 126,530.91 : x
  2. Step 2: Convert to fraction form
    180,765.72/249,536.16 = 126,530.91/x
  3. Step 3: Cross multiply
    180,765.72x = 249,536.16 × 126,530.91
  4. Step 4: Simplify right side
    180,765.72x = 31,574,037,402.71
  5. Step 5: Solve for x
    x = 31,574,037,402.71/180,765.72
  6. Step 6: Final answer
    x = 174,668.28

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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.