Home / 153,143.02-211,342.51-84,235.40

Finding the Fourth Proportional to 153,143.02, 211,342.51 and 84,235.40

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Solution

The fourth proportional to 153,143.02, 211,342.51 and 84,235.40 is: 116,247.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,143.02 : 211,342.51 = 84,235.40 : x
  2. Step 2: Convert to fraction form
    153,143.02/211,342.51 = 84,235.40/x
  3. Step 3: Cross multiply
    153,143.02x = 211,342.51 × 84,235.40
  4. Step 4: Simplify right side
    153,143.02x = 17,802,520,866.85
  5. Step 5: Solve for x
    x = 17,802,520,866.85/153,143.02
  6. Step 6: Final answer
    x = 116,247.68

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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.