Home / 152,339.40-210,228.48-83,428.52

Finding the Fourth Proportional to 152,339.40, 210,228.48 and 83,428.52

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Solution

The fourth proportional to 152,339.40, 210,228.48 and 83,428.52 is: 115,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,339.40 : 210,228.48 = 83,428.52 : x
  2. Step 2: Convert to fraction form
    152,339.40/210,228.48 = 83,428.52/x
  3. Step 3: Cross multiply
    152,339.40x = 210,228.48 × 83,428.52
  4. Step 4: Simplify right side
    152,339.40x = 17,539,049,897.11
  5. Step 5: Solve for x
    x = 17,539,049,897.11/152,339.40
  6. Step 6: Final answer
    x = 115,131.41

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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.