Home / 180,830.51-249,544.90-100,258.05

Finding the Fourth Proportional to 180,830.51, 249,544.90 and 100,258.05

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Solution

The fourth proportional to 180,830.51, 249,544.90 and 100,258.05 is: 138,355.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,830.51 : 249,544.90 = 100,258.05 : x
  2. Step 2: Convert to fraction form
    180,830.51/249,544.90 = 100,258.05/x
  3. Step 3: Cross multiply
    180,830.51x = 249,544.90 × 100,258.05
  4. Step 4: Simplify right side
    180,830.51x = 25,018,886,122.56
  5. Step 5: Solve for x
    x = 25,018,886,122.56/180,830.51
  6. Step 6: Final answer
    x = 138,355.45

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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.