Home / 180,916.40-249,501.21-112,939.65

Finding the Fourth Proportional to 180,916.40, 249,501.21 and 112,939.65

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Solution

The fourth proportional to 180,916.40, 249,501.21 and 112,939.65 is: 155,754.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,916.40 : 249,501.21 = 112,939.65 : x
  2. Step 2: Convert to fraction form
    180,916.40/249,501.21 = 112,939.65/x
  3. Step 3: Cross multiply
    180,916.40x = 249,501.21 × 112,939.65
  4. Step 4: Simplify right side
    180,916.40x = 28,178,579,331.98
  5. Step 5: Solve for x
    x = 28,178,579,331.98/180,916.40
  6. Step 6: Final answer
    x = 155,754.70

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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.