Home / 131,547.48-181,537.50-74,957.64

Finding the Fourth Proportional to 131,547.48, 181,537.50 and 74,957.64

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Solution

The fourth proportional to 131,547.48, 181,537.50 and 74,957.64 is: 103,442.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,547.48 : 181,537.50 = 74,957.64 : x
  2. Step 2: Convert to fraction form
    131,547.48/181,537.50 = 74,957.64/x
  3. Step 3: Cross multiply
    131,547.48x = 181,537.50 × 74,957.64
  4. Step 4: Simplify right side
    131,547.48x = 13,607,622,571.50
  5. Step 5: Solve for x
    x = 13,607,622,571.50/131,547.48
  6. Step 6: Final answer
    x = 103,442.67

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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.