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Finding the Fourth Proportional to 180,802.14, 249,499.71 and 99,128.67

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Solution

The fourth proportional to 180,802.14, 249,499.71 and 99,128.67 is: 136,793.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,802.14 : 249,499.71 = 99,128.67 : x
  2. Step 2: Convert to fraction form
    180,802.14/249,499.71 = 99,128.67/x
  3. Step 3: Cross multiply
    180,802.14x = 249,499.71 × 99,128.67
  4. Step 4: Simplify right side
    180,802.14x = 24,732,574,417.69
  5. Step 5: Solve for x
    x = 24,732,574,417.69/180,802.14
  6. Step 6: Final answer
    x = 136,793.59

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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.