Home / 153,697.04-212,119.08-90,088.64

Finding the Fourth Proportional to 153,697.04, 212,119.08 and 90,088.64

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Solution

The fourth proportional to 153,697.04, 212,119.08 and 90,088.64 is: 124,332.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,697.04 : 212,119.08 = 90,088.64 : x
  2. Step 2: Convert to fraction form
    153,697.04/212,119.08 = 90,088.64/x
  3. Step 3: Cross multiply
    153,697.04x = 212,119.08 × 90,088.64
  4. Step 4: Simplify right side
    153,697.04x = 19,109,519,435.25
  5. Step 5: Solve for x
    x = 19,109,519,435.25/153,697.04
  6. Step 6: Final answer
    x = 124,332.38

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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.