Home / 153,829.02-212,292.09-90,187.26

Finding the Fourth Proportional to 153,829.02, 212,292.09 and 90,187.26

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Solution

The fourth proportional to 153,829.02, 212,292.09 and 90,187.26 is: 124,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,829.02 : 212,292.09 = 90,187.26 : x
  2. Step 2: Convert to fraction form
    153,829.02/212,292.09 = 90,187.26/x
  3. Step 3: Cross multiply
    153,829.02x = 212,292.09 × 90,187.26
  4. Step 4: Simplify right side
    153,829.02x = 19,146,041,916.77
  5. Step 5: Solve for x
    x = 19,146,041,916.77/153,829.02
  6. Step 6: Final answer
    x = 124,463.13

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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.