Home / 155,123.64-214,065.90-88,055.16

Finding the Fourth Proportional to 155,123.64, 214,065.90 and 88,055.16

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Solution

The fourth proportional to 155,123.64, 214,065.90 and 88,055.16 is: 121,513.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,123.64 : 214,065.90 = 88,055.16 : x
  2. Step 2: Convert to fraction form
    155,123.64/214,065.90 = 88,055.16/x
  3. Step 3: Cross multiply
    155,123.64x = 214,065.90 × 88,055.16
  4. Step 4: Simplify right side
    155,123.64x = 18,849,607,075.04
  5. Step 5: Solve for x
    x = 18,849,607,075.04/155,123.64
  6. Step 6: Final answer
    x = 121,513.44

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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.