Home / 145,349.02-216,718.16-139,799.51

Finding the Fourth Proportional to 145,349.02, 216,718.16 and 139,799.51

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Solution

The fourth proportional to 145,349.02, 216,718.16 and 139,799.51 is: 208,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,349.02 : 216,718.16 = 139,799.51 : x
  2. Step 2: Convert to fraction form
    145,349.02/216,718.16 = 139,799.51/x
  3. Step 3: Cross multiply
    145,349.02x = 216,718.16 × 139,799.51
  4. Step 4: Simplify right side
    145,349.02x = 30,297,092,576.10
  5. Step 5: Solve for x
    x = 30,297,092,576.10/145,349.02
  6. Step 6: Final answer
    x = 208,443.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.