Home / 153,758.89-212,182.14-90,095.32

Finding the Fourth Proportional to 153,758.89, 212,182.14 and 90,095.32

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Solution

The fourth proportional to 153,758.89, 212,182.14 and 90,095.32 is: 124,328.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,758.89 : 212,182.14 = 90,095.32 : x
  2. Step 2: Convert to fraction form
    153,758.89/212,182.14 = 90,095.32/x
  3. Step 3: Cross multiply
    153,758.89x = 212,182.14 × 90,095.32
  4. Step 4: Simplify right side
    153,758.89x = 19,116,617,801.58
  5. Step 5: Solve for x
    x = 19,116,617,801.58/153,758.89
  6. Step 6: Final answer
    x = 124,328.54

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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.