Home / 180,830.29-249,532.71-99,145.47

Finding the Fourth Proportional to 180,830.29, 249,532.71 and 99,145.47

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Solution

The fourth proportional to 180,830.29, 249,532.71 and 99,145.47 is: 136,813.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,830.29 : 249,532.71 = 99,145.47 : x
  2. Step 2: Convert to fraction form
    180,830.29/249,532.71 = 99,145.47/x
  3. Step 3: Cross multiply
    180,830.29x = 249,532.71 × 99,145.47
  4. Step 4: Simplify right side
    180,830.29x = 24,740,037,813.32
  5. Step 5: Solve for x
    x = 24,740,037,813.32/180,830.29
  6. Step 6: Final answer
    x = 136,813.57

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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.