Home / 130,893.48-195,929.95-90,129.15

Finding the Fourth Proportional to 130,893.48, 195,929.95 and 90,129.15

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Solution

The fourth proportional to 130,893.48, 195,929.95 and 90,129.15 is: 134,911.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,893.48 : 195,929.95 = 90,129.15 : x
  2. Step 2: Convert to fraction form
    130,893.48/195,929.95 = 90,129.15/x
  3. Step 3: Cross multiply
    130,893.48x = 195,929.95 × 90,129.15
  4. Step 4: Simplify right side
    130,893.48x = 17,658,999,853.04
  5. Step 5: Solve for x
    x = 17,658,999,853.04/130,893.48
  6. Step 6: Final answer
    x = 134,911.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.